CD4 and neoplasm: As shown in Figure 7(a), LAYN expression is significantly correlated with tumor purity (R = −0.302, P < 0.001) and the infiltration of six types of immune cells including B cells (R = 0.325, P < 0.001), CD4+ T cells (R = 0.379, P < 0.001), CD8+ T cells (R = 0.482, P < 0.001), macrophages (R = 0.435, P < 0.001), neutrophils (R = 0.379, P < 0.001), and dendritic cells (R = 0.567, P < 0.001) in LIHC tissues.